Samsung Galaxy Ace Duos I589 has display Size 3.5 Inches, operating system Android 2.2. The device has ram 1 GB too, card support is microSD, up to 32 GB (dedicated slot), it has 2 GB hard disk. Back camera 3 MP is awesome, front camera No is also not bad. Galaxy Ace Duos I589 has power storage, Up to 7 h. Device status is Available